Many waste streams contain high chloride concentrations from industrial and municipal waste inputs. Electrochemical oxidation using boron-doped diamond (BDD) electrodes poses a viable treatment option for the removal of organics from these waste streams but formation of perchlorate, a human health risk, has been discovered as an unwanted byproduct.  This presentation will highlight the experimental application of BDD electrodes for the oxidation of contaminants presents in chloride-containing waters.  Work presented focuses on the factors affecting perchlorate production including flow rate, chloride concentration, and the presence of other inorganic and organic constituents.  It has been found that constituents that either compete for electrode surface sites or scavenge hydroxyl radicals act to limit perchlorate formation.

Effect of solution conditions on perchlorate byproduct formation during electrochemical oxidation of chloride-containing waters

243rd National Meeting (2012)

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